GeForce4 MX 420 vs Radeon HD 7950 Boost

Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
ArchitectureGCN 1.0 (2011−2020)Celsius (1999−2005)
GPU code nameTahitiNV17 A3
Market segmentDesktopDesktop
Release date22 June 2012 (12 years ago)6 February 2002 (22 years ago)
Launch price (MSRP)$449 no data

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores1792no data
Core clock speed850 MHz250 MHz
Boost clock speed925 MHzno data
Number of transistors4,313 million29 million
Manufacturing process technology28 nm150 nm
Power consumption (TDP)200 Wattno data
Texture fill rate103.61.000
Floating-point processing power3.315 TFLOPSno data
ROPs322
TMUs1124

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

InterfacePCIe 3.0 x16AGP 4x
Length274 mmno data
Width2-slot1-slot
Supplementary power connectors2x 6-pinNone

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeGDDR5SDR
Maximum RAM amount3 GB64 MB
Memory bus width384 Bit64 Bit
Memory clock speed1250 MHz166 MHz
Memory bandwidth240.0 GB/s1.328 GB/s

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors1x DVI, 1x HDMI, 2x mini-DisplayPort1x VGA, 1x S-Video
HDMI+-

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX12 (11_1)8.0
Shader Model5.1no data
OpenGL4.61.3
OpenCL1.2N/A
Vulkan1.2.131N/A

Pros & cons summary


Recency 22 June 2012 6 February 2002
Maximum RAM amount 3 GB 64 MB
Chip lithography 28 nm 150 nm

HD 7950 Boost has an age advantage of 10 years, a 4700% higher maximum VRAM amount, and a 435.7% more advanced lithography process.

We couldn't decide between Radeon HD 7950 Boost and GeForce4 MX 420. We've got no test results to judge.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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AMD Radeon HD 7950 Boost
Radeon HD 7950 Boost
NVIDIA GeForce4 MX 420
GeForce4 MX 420

Comparisons with similar GPUs

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Community ratings

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4.5 13 votes

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3.4 23 votes

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Questions & comments

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